Fuel Grade; Fuel Sulphur Content - Mercedes-Benz OM 904 LA Operating Instructions Manual

Service products
52
Switch off the engine and the auxiliary heating
before refueling.
G
WARNING
Avoid contact with fuels.
It is hazardous to your health if your skin
comes into direct contact with fuels or you
breathe in fuel vapours.
! If you are using drums or canisters to
refuel the engine/vehicle/equipment, you
should filter the fuel before filling.
This prevents malfunctions in the fuel sys-
tem caused by contaminated fuel.
The following fuel types are not permitted:
marine diesel fuel
R
aviation turbine fuel
R
heating oils
R
! Only refuel with commercially available
diesel vehicle fuel that complies with the
European standard EN 590.
EN 590 describes a sulphur-free fuel with a
maximum sulphur content of 10 ppm. How-
ever, it is also permitted to operate engines
®
with BlueTec
with up to 50 ppm.
For engines without BlueTec
aftertreatment, the maintenance intervals
must be reduced when operating with
higher sulphur contents. For details on this,
see the table below. Even if the mainte-
nance intervals are reduced, operation with
higher sulphur contents will lead to
increased engine wear, especially on the
fuel injectors.
When necessary, use only approved fuel
additives.
There is otherwise a risk of impaired engine
performance or engine and catalytic con-
verter damage. The use of appropriate fuel
additives is your responsibility.
exhaust gas aftertreatment
®
exhaust gas
Sulphur content in
diesel fuel
Up to 0.3% by weight
(3000 ppm)
From 0.3% by weight
(3000 ppm) to 0.8%
by weight
(8000 ppm)
Over 0.8% by weight
(8000 ppm)
! Fuel grade in accordance with EN 590 is
prescribed as mandatory for engines with
®
BlueTec exhaust gas aftertreatment. If
diesel fuel which does not comply with EN
590 is used, it can damage the exhaust
system.

Fuel grade

Information about current country-specific
fuel sulphur contents can be obtained from
any Mercedes-Benz or MTU Service Centre
Y
( page 11).
i Certain countries have diesel fuel with
varying sulphur content. Diesel fuel with
low sulphur content is sold in certain coun-
tries under the name "Euro diesel".

Fuel sulphur content

You can find a table of fuel sulphur contents
in specific countries in the Mercedes-Benz
Specifications for Service Products, Sheets
136.1 and 136.2 at http://bevo.mercedes-
benz.com.
The maintenance intervals for engine oil and
filter replacement must be adapted depend-
ing on the fuel grade used. The higher the sul-
phur content in diesel fuel, the shorter the
maintenance intervals for engine oil and filter
replacement. Observe the notes in the Main-
tenance Booklet.
Interval for chang-
ing engine oil and
filter
100%
50%
30%